Perform a switchover

Performing a manual switchover causes the current primary node to switch over to the backup node, as defined in the cluster resource group's recovery domain.

When this happens, the current roles of the nodes in the recovery domain of a cluster resource group change such that:

The current primary node is assigned the role of last active backup.
The current first backup is assigned the role of primary.
Subsequent backups are moved up one in the order of backups.

Start of change A switchover is only allowed on primary-backup model CRGs that have a status of ACTIVE. End of change

Note: If you are performing a switchover on a switchable device (also known as a device CRG), you should synchronize user profile name, UID, and GID for performance reasons.

Using iSeries™ Navigator

This requires Option 41 (HA Switchable Resources) to be installed and licensed.

To switch a resource - a switchable hardware group, switchable application, or switchable data group - from the primary node to the backup node in the recovery domain, the resource must have a status of Started.

To perform a switchover on a resource, follow these steps:

In iSeries Navigator, expand Management Central.
Expand Clusters.
Expand the cluster containing the desired resource.
Click Switchable Hardware, Switchable Software, or Switchable Data.
Right-click the desired resource, and select Switch.

Using Cluster APIs

You can also use the following to perform a switchover: